Android 代码混淆及第三方jar包不被混淆

为了保护代码被反编译，android引入了混淆代码的概念

1.设置混淆

在工程下找到project.properties文件

在文件中加入proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt这个是系统的

也可以用自己的混淆文件（这样就可以配置一些自己的东西），去sdk.dir}/tools/proguard/ 下复制proguard-android.txt文件到本地工程中

然后设置成proguard.config=proguard-android.txt

#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txtproguard.config=proguard-android.txt# Project target.target=android-17

2.配置自己的混淆文件proguard-android.txt

为了解决第三方包不被混淆，第三方包在混淆后，运行的时候会挂掉。我的错误是java.lang.ExceptionInInitializerError

E/AndroidRuntime( 9608): java.lang.ExceptionInInitializerErrorE/AndroidRuntime( 9608):        at a.a.b.f.<init>(Unknown Source)E/AndroidRuntime( 9608):        at a.a.b.e.<init>(Unknown Source)E/AndroidRuntime( 9608):        at a.a.c.dg.b(Unknown Source)E/AndroidRuntime( 9608):        at a.a.c.dg.a(Unknown Source)E/AndroidRuntime( 9608):        at a.a.c.b.a(Unknown Source)E/AndroidRuntime( 9608):        at a.a.c.ad.a(Unknown Source)E/AndroidRuntime( 9608):        at a.a.a.a(Unknown Source)E/AndroidRuntime( 9608):        at com.petsea.c.a(Unknown Source)E/AndroidRuntime( 9608):        at com.petsea.c.a(Unknown Source)E/AndroidRuntime( 9608):        at com.petsea.h.a(Unknown Source)E/AndroidRuntime( 9608):        at com.petsea.h.onPostExecute(Unknown Source)E/AndroidRuntime( 9608):        at android.os.AsyncTask.finish(AsyncTask.java:631)E/AndroidRuntime( 9608):        at android.os.AsyncTask.access$600(AsyncTask.java:177)E/AndroidRuntime( 9608):        at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)E/AndroidRuntime( 9608):        at android.os.Handler.dispatchMessage(Handler.java:99)E/AndroidRuntime( 9608):        at android.os.Looper.loop(Looper.java:137)E/AndroidRuntime( 9608):        at android.app.ActivityThread.main(ActivityThread.java:5041)E/AndroidRuntime( 9608):        at java.lang.reflect.Method.invokeNative(Native Method)E/AndroidRuntime( 9608):        at java.lang.reflect.Method.invoke(Method.java:511)E/AndroidRuntime( 9608):        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)E/AndroidRuntime( 9608):        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)E/AndroidRuntime( 9608):        at dalvik.system.NativeStart.main(Native Method)E/AndroidRuntime( 9608): Caused by: java.lang.ExceptionInInitializerErrorE/AndroidRuntime( 9608):        at a.a.b.l.<clinit>(Unknown Source)E/AndroidRuntime( 9608):        ... 22 more

最终我通过加LOG的调试方法定位到是由于第三方jar包被混淆后的原因导致的。

3解决方法：

在proguard-android.txt文件最后加入了-keep class org.jsoup.**这样一句代码，就是保持这个类不被混淆

附上proguard-android.txt源文件

# This is a configuration file for ProGuard.# http://proguard.sourceforge.net/index.html#manual/usage.html-dontusemixedcaseclassnames-dontskipnonpubliclibraryclasses-verbose# Optimization is turned off by default. Dex does not like code run# through the ProGuard optimize and preverify steps (and performs some# of these optimizations on its own).-dontoptimize-dontpreverify# Note that if you want to enable optimization, you cannot just# include optimization flags in your own project configuration file;# instead you will need to point to the# "proguard-android-optimize.txt" file instead of this one from your# project.properties file.-keepattributes *Annotation*-keep public class com.google.vending.licensing.ILicensingService-keep public class com.android.vending.licensing.ILicensingService# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native-keepclasseswithmembernames class * {    native <methods>;}# keep setters in Views so that animations can still work.# see http://proguard.sourceforge.net/manual/examples.html#beans-keepclassmembers public class * extends android.view.View {   void set*(***);   *** get*();}# We want to keep methods in Activity that could be used in the XML attribute onClick-keepclassmembers class * extends android.app.Activity {   public void *(android.view.View);}# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations-keepclassmembers enum * {    public static **[] values();    public static ** valueOf(java.lang.String);}-keep class * implements android.os.Parcelable {  public static final android.os.Parcelable$Creator *;}-keepclassmembers class **.R$* {    public static <fields>;}# The support library contains references to newer platform versions.# Don't warn about those in case this app is linking against an older# platform version.  We know about them, and they are safe.-dontwarn android.support.**-keep class org.jsoup.**

1.设置混淆

2.配置自己的混淆文件proguard-android.txt

3解决方法：

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